title: A 64-year-old woman with dilated right pupil, nausea, and headache.
authors.affiliation: The Canberra Hospital, Canberra, Australia. ali.haider@act.gov.au
authors.forename: Ali S
authors.initials: AS
authors.lastname: Haider
authors.forename: Prashanth J
authors.initials: PJ
authors.lastname: Rao
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006261:Headache / Q000209:etiology*; D006801:Humans; D008875:Middle Aged; D009325:Nausea / Q000209:etiology*; D010899:Pituitary Apoplexy / Q000150:complications* / Q000175:diagnosis; D011681:Pupil Disorders / Q000209:etiology*